Hot-water heater.



mm s;

H. TIELKEMEYER.

Patented June 29, 1915.

3 SHEETS-SHEET I.

H. TIELKEMEYER.

HOT WATER HEATER.

APPLICATION FILED JAN-27.1915.

Patented June 29, 1915.

3 SHEETS-SHEET 2.

H. TIELKEMEYER.

HOT WATER HEATER.

APPLICATION FILED JAN. 27, 1915.

Patented June 29, 1915.

3 SHEETS-SHEET 3.

wmwooco HENRY TIELKEIVIEYER, OF ST. LOUIS, MISSOURI.

HGT-'WATER 'HEATER.

Specification of Letters Patent.

Patented June 29, 1915.

Application filed January 27, 1915. Serial No. 4,677.

To all whom it m a concern:

' Be it known that I, HENRY TIELKEMEYER, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements 1n Hotater Heaters; and I do hereby declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain. new and useful improvements in heating boilers and resides more especially in the production of a boiler of the down-draft and water grate type.

The primary object of this invention is to produce a compact heating boiler of the above class composed of a plurality of easily assembled zl-lCl disassembled superimposed horizontally arranged water sections, and one in which a minimum amount of fuel is consumed and at the same time a greater radiation of heat attained.

Another object of this invention is the production of a boiler having a removable water fire grate arranged above the usual fire grate and conveniently constructed so as to communicate with the circulating system and the boiler.

Another object of this invention is to produce a boiler of the above type in which the circulating heating medium entirely surrounds and is in direct contact with the products of combustion, thereby securing the highest possible absorption of heat.

A further object of this invention is the production of a down draft boiler in which the productsof combustion are consumed in their exit through the flue and the several passages within the boiler.

With these and other objects in view the invention further consists in the novel arrangement and construction of the several parts hereinafter described and pointed out in the appended claims.

In the drawings which show by way of illustration one embodiment of this invention, Figure 1 is a front elevation of the improved boiler showing a portion of the discharge and return pipes of the circulating system. Fig. 2 is a vertical sectional view, taken at right angles to Fig. 1, and on the line 3-3 thereof. Fig. 8 is a similar View taken at right angles to Fig. 2. Fig. 4- is a detail plan view of the uppermost or cap section to which the discharge pipes of the system are attached. Fig. 5 is a detail sectional view through this uppermost section taken on the line 5-5 of Fig. 4:. Fig. 6 is a detail horizontal section of one of the interposed sections of the boiler on the line 6 6 of Fig. 3. Fig. 7 is a plan view of the boiler with the two upper sections removed, showing the dome-shaped interior of the major section and the adjacent flue for the passage of the products of combustion, and Fig. 8 is a sectional plan view on the line 88 of Fig. 1, illustrating the water grate and its connection with the boiler and the system.

The present invention has been primarily designed for use in connection with hot water heating systems and to that end oonsists of a preferably round or circular boiler composed of a plurality of horizontally arranged superimposed water sections including an ash box or bottom section, a second or major water section mounted upon the ash box and having positioned therein the water grate and a vertically disposed flue leading from beneath the said grate; a third water section positioned upon the last mentioned section of hollow disk-like formation and having'especially designed passageways provided therein for the exit of the products of combustion, and a fourth or uppermost hollow cap water section mounted upon the third section adapted to cornmunicate with the said second and third sections, and suitably connect the flue and passageways of the said second and third sections with the usual chimney outside of the boiler.

Referring to the drawings, in which like reference characters designate similar parts, the boiler 1 is preferably cast of circular formation and comprises the usual ash box 2 provided with the fire grate 3, and the or dinary ash door 4. These parts are Inanipulated in the well known way and a further description thereof will not be given.

The second or major water section 5 is mounted upon the ash box 2 and as herein shown is supported upon the flange 6 formed integral with the ash box. This water section constitutes the major portion of the struction is employed throughout this entire is fed to the fire box.

nection with the draft flue.

boiler and includes the water grate 7, the 'fire box 8 and the vertical draftflue 9.

It is preferably cast round and is provided with an inner shell 10 and an outer shell ll be tween which the water is designed to circulate. This hollow or double shell consection and provides for a complete surrounding and direct Contact of the water with the products of combustion, as will be readily seen by reference to Figs. 2, 3 and 8. In the front of this major section is provided the fire door 12 through which the fuel This door and doorway is located near the top of the section and leads directly into a dome-shaped porand 11 of this major section by the ports 15.

These. are circumferentially arranged around the base of the dome-shaped portion and facilitate the ready circulation of the water therethrough above the fire box. This dome-shaped portion is located substantially above the center of the fire box and is designed to'concentrate a large portion of the heat in direct contact with a greater volume of water than is at the present time circu lated above the fire box. The positioning of this dome within this section near the top thereof also permits of a higher location of the fire door and oonsequently'a deeper and more effective fire box. By this construction the fire can be kept even with and slightly above the fire doorway without injuring the hollow walls immediately above. The draft flue 9 formed in this section is located at the rear thereof, and is formed with a double shell for the circulation of water thereabout. It is formed with slanting side Walls which are substantially tangential to the round body of the boiler, see Fig. 8. Direct communication of the circulating water is provided between the hollow Walls of the boiler and those of the flue as will be readily seen by reference to Fig. 8.

At the bottom of the flue 9 an angular passageway 16 is provided which leads directly into the combustion chamber or supplemental fire box 17 located between the water grate and the usual. lire grate. This boiler being of the down draft type the products of con'lbustion pass downwardly through the water grate into the supplemental firebox Where they are consumed, and then out through the passageway 16 to the vertical flue 9. The consumption of these products of combustion tends to produce a substantially smokeless boiler. The

water surrounding the flue 9 absorbs the heat from these remaining products of combustion asthey pass out of the flue. At the top of the flue 9 an angular passageway 18, similar to that at the bottom of the flue, is provided. This passageway is in communication with an annular passageway 19 formed by the dome-shaped portion of the section terminating short of the outer shell of the boiler as hereinbefore explained. The annular passageway 19 is slightly inclined by reason of the different planes in which the semi-spherical dome is formed, thereby permitting of a direct and full discharge of the products of combustion over the dome without restricting or otherwise checking the draft by reason of the next adjoining water section, to be described presently. The removable Water grate 7 is positioned within the lower portion of the section 5 upon supporting lugs 20 formed integral with and projecting inwardly from the hollow major section. It is formed of an annular tubular member 21 provided with interconnecting tubular members 22 extending transversely thereof. These tubular members 22 are sufficiently separated to permit of the passage of the products of combustion and a portion of the fire bed when raked through the doors 23 rovided just above the water grate. An in et 24; from the system is provided on one side of the water grate and an outlet 25 is provided upon the opposite side thereof communicating with the circulating water in the boiler.

Connected to the inlet 24: is a pipe 26 passing through the boss 27 formed in the boiler, and provided with a flange 28. To-

this flange is bolted a flange 29 carried by a section. of pipe 30 of the -ysten. The return pipe 31 of the system is connected to the pipe 30 by a T fitting 32, as shown in Figs. 1 and 8. The water returning from the radiators or other heating units of the system passesthrough the short pipe section 30 into the water grate where it becomes reheated for the purposes of circulation. A part of the return water also passes down through a branch connection 3-3 into the major water section near the bottom of the boiler. A suitable flange connection 34: is provided in this branch and provides for, the ready assembling of the boiler with the system.

To the outlet 25 of the water grate is connected a pipe 35 which passes through boss 36 formed in the boiler and which is provided at its end with a flange 37. To this flange 37 is bolted a flange 38 of a pipe connection 39 which communicates with the circulating water in the boiler, see Figs. 1 and 2. A suitable flange connection 40 is provided between this pipe masses 39 and the boiler to facilitate its assembling. -A return pipe 41 from the system is provided on this side of the boiler also, and enters the boiler at the bottom thereof at a point substantially opposite the return pipe 33. By this construction and arrangement of the water grate and connections it will be seen that a removable water grate is provided which can be easily taken out for purposes of cleaning, repairing, or for other reasons, and also that an efficient return and circulation of the water in the boiler is effected so as to absorb the greater amount of heat.

In practice should it become necessary to remove the water grate and replace it with another, or for purposes of repair, or the like, the upper water sections are lifted. or jacked up as a unit in any suitable manner from the ash box, and the water grate, after having been previously disconnected from the pipes of the system and the boiler, may be tilted from its supporting lugs and readily removed.

Positioned upon the ,major water heating section is the disk-like hollow water section 42. This section communicates with the first mentioned section through the ports 43 and 44 provided in the underside of the disk Water section as shown in Figs. 3, 6 and 7. It is hollow, or of the double shell formation, and is provided with an enlarged circulating chamber 45 and a series of interconnected ducts and chambers 46. Between these ducts or chambers 46 are formed openings 47 through which the products of combustion pass after circulating over and around the dome 13. A centrally located communication is provided between the major water section and this hollow disk section and consists of a short pipe or nipple 48 both ends of which are beveled to fit within a corresponding bevel in the said major and hollow disk sections. Ports 49 are provided within the hollow disk-like water section, and establish comnets of combustion.

munication with the nipple 48. The passage of the products of combustion beneath, through, and above the hollow disklike water section tends to f1 ther heat the water. The construction and location of the draft openings 4-7 in the hollow disk-like water section with relation to the vertical flue, also permits of an eflicient draft and passage for the prod Thus it will be seen that the interposing of the hollow disk-like water section is highly essential to the effective operation of the boiler in the utilization of a minimum amount of fuel and the obtaining of a maximum degree of heating surface.

I The fourth or cap water section 50 is positioned upon the hollow disk-like watersection. This cap section is of double shell formation and is provided with a communieating pipe or nipple 51 leading into the hollow disk-like water section. This is formed with beveled ends as at 52, and is adapted to fit into corresponding beveled portions provided in the cap and hollow disk-like water sections. By reason of this communication the water is allowed to circulate up into the cap section from the lower water section, from where it is taken out through the discharge openings 53 into the discharge pipe 54 and on to the radiators or other heating devices of the system, from whence it is returned again to the boiler, as hereinbefore described. The products of combustion pass beneath this cap water section and out through an opening 55 formed therein into a suitable connection of the usual chimney outside of the boiler and indicated by dotted lines in Fig. 2.

In'order to assemble and properly secure the several water sections together there is provided on the cap section a series of equally spaced lugs 56. Coiiperating with these lugs are asimilar series of lugs 57 formed and equally spaced upon the major water section. Suitable draw bolts 58 are interposed between these lugs and as they are tightened the cap and major water sections are drawn together thereby clamping the hollow disk-like water section between the two said sections. The nipples 48 and 51 are also securely seated within the beveled recesses hereinbefore mentioned and a water-tight structure is produced. As shown at 59 suitable small nipples are interposed between the ports 43 and 44 of the disk-like section 42 and the corresponding ports in the underlying section in order to make the boiler water-tight at these points. When the bolts 58 are secured, the three water sections become a unitary structure and can be readily handled in removing the water grate, as hcreinbefore set forth.

A door 60 is provided in the hollow cap section which facilitates the cleaning of the parts as occasion requires. Suitable doors 61 are also provided in the major water section for the purpose of readily cleaning the passageway about the dome. 7

Thus it will be seen that a compact and efficient boiler is provided having as its chief qualities the utilization of a minimum amount of coal, with a greater degree of heat radiation, an easily constructed and assembled water grate, and a system ofwater circulation through the boiler whereby it is entirely surrounded and in close contact with the products of combustion.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A boiler of the class described consisting of a plurality of horizontally arranged superimposed hollow water sections through which a heating medium circulates, the said hollow water sections including a major section, a hollow disk section, mounted upon and communicating with the major section and a top or cap section communicating with the hollow disk section, a hollow Water grate communicating with the aforesaid major section, a vertical flue extending from be neath the water grate to the top of the major section, an' adjacent flue horizontally disposed between the major section and the hollow disk section and communicating with the vertical flue, and another flue horizontally disposed between the hollow disk section and the cap section and extending from the aforesaid adjacent flue to the outside of the boiler.

2. A boiler of the class described consisting of a plurality of horizontally arranged .superimposed hollbw water sections through which a heating medium circulates, the said hollow water sections including a major water section having a hollow dome-shaped section near the top thereof, a hollow water grate communicating with the aforesaid major water section, a vertical flue extending from beneath the water grate to the top of the major section, another flue disposed between the top of the major and the adj oining section and around the dome-shaped section of the said major section and communicating with the vertical flue and the top of the boiler.

3. A boiler of the class described consisting of a plurality of horizontally arranged superimposed hollow water sections through which a heating medium circulates, the said hollow water sections including a major water section having a hollow dome-shaped water section located adjacent the fuel door and communicating with the adjoining section at the center thereof, a hollow water grate communicating with the aforesaid major water section, a vertical flue extend-.-

ing from beneath the water grate to the top of the major section, another flue disposed between the top of the major and the ad'- joining section and around the dome-shaped watersection and the centrally located water connection with the adjoining section, and communicating with the vertical flue and the top of the boiler.

4. A boiler of the class described consist-' ing of a plurality of horizontally arranged superimposed water sections through which a heating medium circulates, the said hollow Water sections including a major water section, a hollow disk water section positioned upon the major section and communicating therewith, the said hollow disk section being provided with a series of openings, a fuel grate positioned in the said major section, a vertical fiueextending from beneath the grate to the top of the major section, another flue disposed horizontally between the said major section and the hollow disk section and communicating with the vertical flue and the openings inthe hollow disk water section and another fine extending from the aforesaid openings to the outside of the boiler.

5. A boiler of the class described consistmajor section, a flue extending from beneath the said grate to the too of the major section, an adjoining flue disposed horizontally between the said major section and the adjoining hollow disk section and another flue disposed between the said hollow disk section and the hollow cap section of the boiler and around the aforesaid central conduit and extending from the aforesaid horizontal plane to the outside of the .boiler,

6. A boiler of the class described consisting of an ash box, a plurality of horizontally arranged superimposed hollow water sec-.

tions through which a heating medium circulates mounted upon the said ash box, the said hollow water sections including a major section, a hollow disk section mounted upon and communicating with the major section and a top or cap section mounted upon and communicating with the said hollow disk section, means interposed between the major and the cap sections for holding all of the said hollow Water sections together and in place, a fuel water grate located in the said major section, a flue extending from beneath the grate to the top of the major section, an adjoining flue disposed between the top of the major section and the adja' cent section and another flue extending from the aforesaid adjoining flue to the outside of the boiler. j i

' 7. A boiler of the class described consist ing of a plurality of horizontally arranged I superimposed hollow water sections through which the heating medium circulates, the said hollow water sections including a major section having a plurality of return inlets at the bottom thereof, a hollow disk water section communicating with the said major section, a top or cap section communicating with the said hollow disk section, and provided with discharge openings, a hollow water grate positioned within the major section and having an, inlet and outlet therein, the said inlet communicating with the aforementioned return and the said outlet communicating with the said major water section, a flue extending from beneath the grate to the top of the major section, an adjacent flue horizontally disposed above the major section and having communication with the said vertical flue and the top of the boiler.

In testimony whereof 1 efix my signature; in presence of two subscribing" Witnesses.

HENRY TIELKEMEEZ'ER l/Vitnesses:

Lows SPELBRINK, LOUIS Bone. 

